Donaldson Blue 6637 air filter, better flow and filtration

rusty1161 · Sep 25, 2016

I was surfing this evening and came across these http://www.riffraffdiesel.com/donaldson-blue-6637-filter-group-buy/

Has anyone heard of or used these filter yet? They sound like a good way to go.

Thanks.

Rusty

jgross91482 · Sep 25, 2016

I use the Napa Gold 6637 and it is great, compared to the K&N set up that was on the truck when I bought it. Not sure if the BLUE aspect isn't just for marketing purposes.

1997 F250 EC 4x4
D.I.Y. 6637, 3" DP, 4" straight pipe, TS chip, e4od w/ Suncoast internals, banks dynafact boost & EGT guages, autometer Trans Temp gauge

Powerstroke1098 · Sep 25, 2016

I saw this a little while back and am definitely getting it to replace my standard 6637 when its time.

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dillpurdy92 · Sep 25, 2016

Definitely cant go wrong

1994.5 CCLB zf5

79jasper · Sep 25, 2016

Those are definitely better than the standard 6637 filters.

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Derek0525 · Sep 26, 2016

I have been running one for about 2 months now I was using the AFE Big Boost before but it got a hole wore in it from the factory battery box ( have a diff battery tray now ) so far I haven't had any problems with it. The flow is supposedly better than the regular 6637 but I wouldn't know first hand because I never ran one.

Strokersace · Sep 26, 2016

I'd be interested to see what this filter really is.

They're calling it a Donaldson... And a 6637. They are NOT the same.

Derek0525 · Sep 26, 2016

It's a Donaldson filter they have a whole line of blue filters oil and Air that's all I know.

Strokersace · Sep 26, 2016

Derek0525 said:
It's a Donaldson filter they have a whole line of blue filters oil and Air that's all I know.

So it's not a 6637 filter then. That number is the Napa #. Not a Donaldson. 2 completely different filters that look the same. If it's Donaldson, then they shouldn't be calling it a 6637...

superduty4x4 · Sep 26, 2016

Strokersace said:
So it's not a 6637 filter then. That number is the Napa #. Not a Donaldson. 2 completely different filters that look the same. If it's Donaldson, then they shouldn't be calling it a 6637...

As far as I know (which isn't much) it's a Donaldson filter made with water repellent media. Clay is probably marketing them as a "6637" because that's what every swinging dick that owns a 7.3 calls the filter, no matter which one they run or buy. I have never heard anyone say "check out my B085011 intake!"

Krause · Sep 26, 2016

superduty4x4 said:
As far as I know (which isn't much) it's a Donaldson filter made with water repellent media. Clay is probably marketing them as a "6637" because that's what every swinging dick that owns a 7.3 calls the filter, no matter which one they run or buy. I have never heard anyone say "check out my B085011 intake!"

^ exactly, know your audience.

Strokersace · Sep 26, 2016

superduty4x4 said:
As far as I know (which isn't much) it's a Donaldson filter made with water repellent media. Clay is probably marketing them as a "6637" because that's what every swinging dick that owns a 7.3 calls the filter, no matter which one they run or buy. I have never heard anyone say "check out my B085011 intake!"

Krause said:
^ exactly, know your audience.

You're exactly right and I completely agree! Know your audience. Clay marketed his kit as the 6637 kit from day one.

I don't know why but it's always been a pet peeve of mine saying that the Donaldson filter and the 6637 are the same filter because they're in fact NOT. And now, here we have Clay marketing them as the same thing, which I don't agree with!

Don't get me wrong, I get it. I just don't agree with it. Just muddies the waters even further, in my opinion.

Strokersace · Sep 26, 2016

superduty4x4 said:
. I have never heard anyone say "check out my B085011 intake!"

No, I used to say "Check out my Tymar intake!" LOL

How have you been man? Haven't talked to you in forever. I'm sure a lot had changed in both our lives since we last spoke. My number's still the same. Give me a shout sometime.

79jasper · Sep 26, 2016

After going through the whole Donaldson catalog, appears this may be a custom make.

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rusty1161 · Sep 26, 2016

79jasper said:
After going through the whole Donaldson catalog, appears this may be a custom make.

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I came across this https://www.donaldson.com/en/engine/filters/articles/a-new-standard-in-performance Sounds pretty good, they even have fuel filters in this line.

Rusty

79jasper · Sep 26, 2016

Yep. I saw that same thing, forgot to post it. Lol
I just want the actual part number to look up the specs.

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PSD POWER007 · Sep 28, 2016

79jasper said:
Yep. I saw that same thing, forgot to post it. Lol
I just want the actual part number to look up the specs.

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If you look at the pictures on Clay's site, there's a spec sheet and flow test chart.

Strokersace · Sep 28, 2016

PSD POWER007 said:
If you look at the pictures on Clay's site, there's a spec sheet and flow test chart.

With no part number...

DEEZUZ · Sep 28, 2016

Why does he have to provide a part number? So others can go buy the filters from Amazon?

I just ordered 2 and a pre-filter cause my am soil dry is toast. I didn't understand his instructions though on not buying them and waiting for the pre order... But oh well

ja_cain · Sep 28, 2016

Get the 6637 deminsions and then go to Donaldson's site and find an equivalent "Blue" series air filter. Easy peasy if you want to find the part number.

*Edit*

Here is the old equivalent of the 6637 in the Donaldson.

https://catalog.donaldson.com/produ...roductId=11631&skuId=s10132&_requestid=644722

From there you can get the dimensions and find one in an equivalent "Blue" configuration.